[Ace-users] handle_read_stream never be call

[FE]

I write a web page get program.

    urlget="GET  ";
    urlget+=httpinfo.filename;
    if(httpinfo.filename.size()<5)
       urlget+="/index.html";
    urlget+="  HTTP/1.1\r\nHost: ";
    urlget+=httpinfo.hostname;
    urlget+="\r\nConnection:close";
    urlget+="\r\nUser-agent:Mozilla/4.0";
    urlget+="\r\nAccept-language:zh-cn";
     ACE_NEW_NORETURN (mb,
                  ACE_Message_Block (urlget.c_str(),urlget.size()));
    mb->length(urlget.size());
    write_.write(*mb,urlget.size());


write_ is success,handle_write_stream be call ,fine;

void HTTP_read::handle_write_stream(const
ACE_Asynch_Write_Stream::Result&result)
{
     if (result.success ())
     {
       ACE_DEBUG ((LM_DEBUG, "ace write success\n"));
     }
     ACE_Message_Block *mb=&result.message_block ();
     mb->release();
     ACE_NEW_NORETURN (mb, ACE_Message_Block (1024));
     if (this->reader_.read (*mb, mb->space ()) ==-1)
       {
          ACE_ERROR ((LM_ERROR, ACE_TEXT ("%p\n"),ACE_TEXT ("HTTP_read
begin read")));
          mb->release ();
          delete this;
          return;
       }
}


reader_.read(*mb, mb->space ()) is fine.

but handle_read_stream no be call .what happen?